Texas Instruments ADS6123 Bedienungsanleitung

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FEATURES

DESCRIPTION

APPLICATIONS

ADS6125,ADS6124

ADS6123,ADS6122

SLAS560A–OCTOBER2007–REVISEDMARCH2008

www.ti.com

12-BITS,125/105/80/65MSPSADCWITHDDRLVDS/CMOSOUTPUTS

•MaximumSampleRate:125MSPS

•12-BitResolutionwithNoMissingCodes

ADS6125/ADS6124/ADS6123/ADS6122(ADS612X)

isafamilyof12-bitA/Dconverterswithsampling

•3.5dBCoarseGainandupto6dB

frequenciesupto125MSPS.Itcombineshigh

ProgrammableFineGainforSNR/SFDR

performanceandlowpowerconsumptionina

Trade-Off

compact32QFNpackage.Usinganinternalhigh

•ParallelCMOSandDoubleDataRate(DDR)

bandwidthsampleandholdandalowjitterclock

LVDSOutputOptions

bufferhelpstoachievehighSNRandhighSFDR

evenathighinputfrequencies.

•SupportsSine,LVCMOS,LVPECL,LVDSClock

InputsandClockAmplitudeDownto400mV

PP

Itfeaturescoarseandfinegainoptionsthatareused

toimproveSFDRperformanceatlowerfull-scale

•ClockDutyCycleStabilizer

analoginputranges.

•InternalReferencewithSupportforExternal

Reference

ThedigitaldataoutputsareeitherparallelCMOSor

DDRLVDS(DoubleDataRate).Severalfeatures

•NoExternalDecouplingRequiredfor

existtoeasedatacapturesuchas—controlsfor

References

outputclockpositionandoutputbufferdrivestrength,

•ProgrammableOutputClockPositionand

andLVDScurrentandinternaltermination

DriveStrengthtoEaseDataCapture

programmability.

•3.3VAnalogand1.8Vto3.3VDigitalSupply

Theoutputinterfacetype,gain,andotherfunctions

•32-QFNPackage(5mm×5mm)

areprogrammedusinga3-wireserialinterface.

Alternatively,someofthesefunctionsareconfigured

•PinCompatible12-BitFamily(ADS612X)

usingdedicatedparallelpinssothatthedevice

comesupinthedesiredstateafterpower-up.

•WirelessCommunicationsInfrastructure

ADS612Xincludesinternalreferences,while

eliminatingthetraditionalreferencepinsand

•SoftwareDefinedRadio

associatedexternaldecoupling.Externalreference

•PowerAmplifierLinearization

modeisalsosupported.

•802.16d/e

Thedevicesarespecifiedovertheindustrial

•TestandMeasurementInstrumentation

temperaturerange(–40°Cto85°C).

•HighDefinitionVideo

•MedicalImaging

•RadarSystems

ADS612XPerformanceSummary

ADS6125ADS6124ADS6123ADS6122

F

in

=10MHz(0dBgain)90919395

SFDR,dBc

F

in

=170MHz(3.5dBgain)78828384

F

in

=10MHz(0dBgain)71.171.371.571.6

SINAD,dBFS

F

in

=170MHz(3.5dBgain)67.669.169.269.8

Power,mW417374318285

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Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsof

TexasInstrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.

PRODUCTIONDATAinformationiscurrentasofpublicationdate.

Copyright©2007–2008,TexasInstrumentsIncorporated

ProductsconformtospecificationsperthetermsoftheTexas

Instrumentsstandardwarranty.Productionprocessingdoesnot

necessarilyincludetestingofallparameters.

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